55501531747 has 2 divisors, whose sum is σ = 55501531748. Its totient is φ = 55501531746.

The previous prime is 55501531727. The next prime is 55501531823. The reversal of 55501531747 is 74713510555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55501531747 - 2²⁷ = 55367314019 is a prime.

It is not a weakly prime, because it can be changed into another prime (55501531727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750765873 + 27750765874.

It is an arithmetic number, because the mean of its divisors is an integer number (27750765874).

Almost surely, 2^55501531747 is an apocalyptic number.

55501531747 is a deficient number, since it is larger than the sum of its proper divisors (1).

55501531747 is an equidigital number, since it uses as much as digits as its factorization.

55501531747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367500, while the sum is 43.

The spelling of 55501531747 in words is "fifty-five billion, five hundred one million, five hundred thirty-one thousand, seven hundred forty-seven".